/*
* X11 video grab interface
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav integration:
+ * FFmpeg integration:
* Copyright (C) 2006 Clemens Fruhwirth <clemens@endorphin.org>
* Edouard Gomez <ed.gomez@free.fr>
*
* Copyright (C) 1997-1998 Rasca, Berlin
* 2003-2004 Karl H. Beckers, Frankfurt
*
- * Libav is free software; you can redistribute it and/or modify
+ * FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with Libav; if not, write to the Free Software
+ * along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
*/
#include "config.h"
-#include "libavformat/avformat.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
+#include "libavutil/parseutils.h"
#include <time.h>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
#include <X11/extensions/Xfixes.h>
+#include "avdevice.h"
/**
* X11 Device Demuxer context
*/
struct x11_grab
{
+ const AVClass *class; /**< Class for private options. */
int frame_size; /**< Size in bytes of a grabbed frame */
AVRational time_base; /**< Time base */
int64_t time_frame; /**< Current time */
+ char *video_size; /**< String describing video size, set by a private option. */
int height; /**< Height of the grab frame */
int width; /**< Width of the grab frame */
int x_off; /**< Horizontal top-left corner coordinate */
XImage *image; /**< X11 image holding the grab */
int use_shm; /**< !0 when using XShm extension */
XShmSegmentInfo shminfo; /**< When using XShm, keeps track of XShm infos */
- int nomouse;
+ int draw_mouse; /**< Set by a private option. */
+ char *framerate; /**< Set by a private option. */
};
/**
int x_off = 0;
int y_off = 0;
int use_shm;
- char *param, *offset;
+ char *dpyname, *offset;
int ret = 0;
+ AVRational framerate;
- param = av_strdup(s1->filename);
- offset = strchr(param, '+');
+ dpyname = av_strdup(s1->filename);
+ offset = strchr(dpyname, '+');
if (offset) {
sscanf(offset, "%d,%d", &x_off, &y_off);
- x11grab->nomouse= strstr(offset, "nomouse");
+ x11grab->draw_mouse = !strstr(offset, "nomouse");
*offset= 0;
}
- av_log(s1, AV_LOG_INFO, "device: %s -> display: %s x: %d y: %d width: %d height: %d\n", s1->filename, param, x_off, y_off, ap->width, ap->height);
+ if ((ret = av_parse_video_size(&x11grab->width, &x11grab->height, x11grab->video_size)) < 0) {
+ av_log(s1, AV_LOG_ERROR, "Couldn't parse video size.\n");
+ goto out;
+ }
+ if ((ret = av_parse_video_rate(&framerate, x11grab->framerate)) < 0) {
+ av_log(s1, AV_LOG_ERROR, "Could not parse framerate: %s.\n", x11grab->framerate);
+ goto out;
+ }
+#if FF_API_FORMAT_PARAMETERS
+ if (ap->width > 0)
+ x11grab->width = ap->width;
+ if (ap->height > 0)
+ x11grab->height = ap->height;
+ if (ap->time_base.num)
+ framerate = (AVRational){ap->time_base.den, ap->time_base.num};
+#endif
+ av_log(s1, AV_LOG_INFO, "device: %s -> display: %s x: %d y: %d width: %d height: %d\n",
+ s1->filename, dpyname, x_off, y_off, x11grab->width, x11grab->height);
- dpy = XOpenDisplay(param);
+ dpy = XOpenDisplay(dpyname);
+ av_freep(&dpyname);
if(!dpy) {
av_log(s1, AV_LOG_ERROR, "Could not open X display.\n");
ret = AVERROR(EIO);
goto out;
}
- if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
- av_log(s1, AV_LOG_ERROR, "AVParameters don't have video size and/or rate. Use -s and -r.\n");
- ret = AVERROR(EINVAL);
- goto out;
- }
-
st = av_new_stream(s1, 0);
if (!st) {
ret = AVERROR(ENOMEM);
av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
use_shm = XShmQueryExtension(dpy);
- av_log(s1, AV_LOG_INFO, "shared memory extension %s found\n", use_shm ? "" : "not");
+ av_log(s1, AV_LOG_INFO, "shared memory extension%s found\n", use_shm ? "" : " not");
if(use_shm) {
int scr = XDefaultScreen(dpy);
ZPixmap,
NULL,
&x11grab->shminfo,
- ap->width, ap->height);
+ x11grab->width, x11grab->height);
x11grab->shminfo.shmid = shmget(IPC_PRIVATE,
image->bytes_per_line * image->height,
IPC_CREAT|0777);
} else {
image = XGetImage(dpy, RootWindow(dpy, DefaultScreen(dpy)),
x_off,y_off,
- ap->width,ap->height,
+ x11grab->width, x11grab->height,
AllPlanes, ZPixmap);
}
}
break;
case 32:
-#if 0
- GetColorInfo (image, &c_info);
- if ( c_info.alpha_mask == 0xff000000 && image->green_mask == 0x0000ff00) {
- /* byte order is relevant here, not endianness
- * endianness is handled by avcodec, but atm no such thing
- * as having ABGR, instead of ARGB in a word. Since we
- * need this for Solaris/SPARC, but need to do the conversion
- * for every frame we do it outside of this loop, cf. below
- * this matches both ARGB32 and ABGR32 */
- input_pixfmt = PIX_FMT_ARGB32;
- } else {
- av_log(s1, AV_LOG_ERROR,"image depth %i not supported ... aborting\n", image->bits_per_pixel);
- return AVERROR(EIO);
- }
-#endif
input_pixfmt = PIX_FMT_RGB32;
break;
default:
goto out;
}
- x11grab->frame_size = ap->width * ap->height * image->bits_per_pixel/8;
+ x11grab->frame_size = x11grab->width * x11grab->height * image->bits_per_pixel/8;
x11grab->dpy = dpy;
- x11grab->width = ap->width;
- x11grab->height = ap->height;
- x11grab->time_base = ap->time_base;
- x11grab->time_frame = av_gettime() / av_q2d(ap->time_base);
+ x11grab->time_base = (AVRational){framerate.den, framerate.num};
+ x11grab->time_frame = av_gettime() / av_q2d(x11grab->time_base);
x11grab->x_off = x_off;
x11grab->y_off = y_off;
x11grab->image = image;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_RAWVIDEO;
- st->codec->width = ap->width;
- st->codec->height = ap->height;
+ st->codec->width = x11grab->width;
+ st->codec->height = x11grab->height;
st->codec->pix_fmt = input_pixfmt;
- st->codec->time_base = ap->time_base;
- st->codec->bit_rate = x11grab->frame_size * 1/av_q2d(ap->time_base) * 8;
+ st->codec->time_base = x11grab->time_base;
+ st->codec->bit_rate = x11grab->frame_size * 1/av_q2d(x11grab->time_base) * 8;
out:
return ret;
nanosleep(&ts, NULL);
}
- if (av_new_packet(pkt, s->frame_size) < 0) {
- return AVERROR(EIO);
- }
-
+ av_init_packet(pkt);
+ pkt->data = image->data;
+ pkt->size = s->frame_size;
pkt->pts = curtime;
if(s->use_shm) {
}
}
- if(!s->nomouse){
+ if (s->draw_mouse) {
paint_mouse_pointer(image, s);
}
-
- /* XXX: avoid memcpy */
- memcpy(pkt->data, image->data, s->frame_size);
return s->frame_size;
}
return 0;
}
+#define OFFSET(x) offsetof(struct x11_grab, x)
+#define DEC AV_OPT_FLAG_DECODING_PARAM
+static const AVOption options[] = {
+ { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "vga"}, 0, 0, DEC },
+ { "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
+ { "draw_mouse", "Draw the mouse pointer.", OFFSET(draw_mouse), FF_OPT_TYPE_INT, { 1 }, 0, 1, DEC },
+ { NULL },
+};
+
+static const AVClass x11_class = {
+ .class_name = "X11grab indev",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
/** x11 grabber device demuxer declaration */
AVInputFormat ff_x11_grab_device_demuxer =
{
x11grab_read_packet,
x11grab_read_close,
.flags = AVFMT_NOFILE,
+ .priv_class = &x11_class,
};
projects / ffmpeg / blobdiff